What Is Relation Between Number?
What is the story behind What Is Relation Between Number? Get the answers here.
We call that the domain. You can view them as the set of numbers over which that relation is defined. And then you have a set of numbers that you can view as the output of the relation, or what the numbers that can be associated with anything in domain, and we call that the range.
When do you not call a relation a function?
But, if the RELATION is not consistent (there is inconsistency in what you get when you push some buttons) then we do not call it a FUNCTION. Of course, in algebra you would typically be dealing with numbers, not snacks.